Spring-cushion structure.



Patented Oct. 5, 1915.

mssma.

2 SHEETS-SHEET I.

F. P. DARCY.

SPRING CUSHION STRUCTURE.

APPLICATION FILED FEB. 25. 1915.

Patented Oct. 5, 1915.

2 SHEETS-SHEET 2.

5 mum W01:

witm vzooeo FRANK P. DAECY, 0F KALAMAZOO, MICHIGAN.

I SPRING-CUSHION STRUCTURE.

Specification of Letters Patent.

Patented Get. 5, 1915.

Application filed February 25, 1915. Serial No. 10,546.

To all whom it may concern Be it known that I, FRANK P. DAnor, a citizen of the United States, residing at Kalamazoo, Michigan, have invented certain new and useful lmprpvements in Spring- Cushion Structures, of which the following is a specification.

This invention relates to improvements in spring cushion structures.

The main objects of tiis invention are,

first, to provide an improved spring cushion covering in which the upholstering cover may be readily secured to the sheet metal frame. Second, to provide an improved cushion structure having these advantages which is simple and economical in structure and has a finished and attractive appearance. Third, to provide an improved spring cushion structure which, with the exception of the upholstering, is practically all metal and at the same time a structure which is durable and rigidylight in weight and also one which is economical to produce.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly, defined and pointed out in the claims.

A-structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure l is a detail perspective View of a structure embodying the features of my invention, the upholstering being omitted. Fig. 11 is a detail vertical section from front to rear of my improved cushion. Fig. 111 is an inverted view with the upholstering omitted. Fig. IV is a detail section on a line corresponding to line 44 of Fig. 1. with the covering in position. Fig. V is a detail vertical section on the line corresponding to line 5-5 of Fig. I, with the upholstering cover in position. Fig. V1 is a detail section on the line corresponding to line 66 of Fig. I. Fig. VII is an inverted view of a slightly modified construction, the modification being in the cross supports for the springs.

In the drawings, similar reference characters refer to similar parts throughoutthe several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, 1 provide a frame member 1- curved in cross section to provide a channel for the tacking strip 2. Thistacking strip is preferably a small rope or cord. The diameter of the tacking strip is substantially greater than the distance be tween the edges 3 and 4: of the channel so that the tacking strip is retained within the channel without any other securing means. The frame is arranged with its channel facing inwardly. The upper arm of the channel is folded backwardly upon itself at 5 to a position centrally above the spring supporting channel and is then curved upwardly and inwardly to provide a channel 6. This spring supporting channel, also faces inwardly and is adapted to receive the bottom coils 7 of the coiled springs 8 and also the ends of the spring supporting cross bars 9. These cross bars 9 are in the form of channel strips arranged in opposed pairs or parallel with the sides of the frame to coact therewith in supporting opposed sides of the outer rows of springs. The spring engaging channels are clamped upon the spring at 10 and upon the ends of the cross bars at 11. The cross bars are clamped upon the coils at 12- so that the springs are rigidly secured to the frames and to the cross bars and the cross bars are rigidly secured to the frame.

I preferably provide a top frame 13 which is secured to the top of the outer row of springs by the clips 14. The cushion is provided with a suitable upholstering 15 having an outer covering 16, the skirt or side portions 17 of which are wrapped around the under side of the frame 1 and secured by the tacks 18 driven into-the tacking strip 2. The length of these tacks is greater than the diameter of the tacking strip channel so that the ends 19 of the tacks are deflected and clenched into the tops, see Figs. IV and V. This effectively supports the upholstering cover to the frame without the necessity for sewing and also without the necessity for any finishing strips or covered tacks as is required where the covering is secured or nailed or tacked to the spring frame from the outside thereof. A further advantage is that while the tacks are securely retained by the tacking strip they are not as unyielding as Where driven into wood so that the covering is not likely to be torn loose by strains 7 thereon.

Owing to the shape of the frame it may be made of quite light material and is at the same time strong and rigid. The tacking strip channel being round provides a curved surface for the covering so that there are no sharp cutting edges likely to injure the covering or to cause undue wear thereon.

y improved cushion structure is simple and economical to produce and the covering may be quickly and easily secured and, as stated, the necessity for nishing strips or gimp and headed tacks is obviated thereby saving in the cost of material and, further, it is not necessary to trim the edges of the finished cushion as they are concealed on the inside of the frame.

While I preferably emplovrope or like material for the tacking strip other material may be satisfactorily used.

I have not attempted to illustrate or describe certain modifications and adaptations of my invention which I contemplate as I believe the disclosure made will enable its adaptation or embodiment as may be desired. I desire, however, to be understood as claiming my improvements specifically in the form illustrated, as well as broadly within the scope of the appendedclaims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a spring cushion, the combination of a sheet metal frame member curved in cross section to provide a tacking strip channel disposed with the channel facing inwardly, the upper arm of said channel be ing folded backwardly curved upwardly and inwardly to provide an inwardly facing spring engaging channel disposed centrally above saidtacking strip channel, springs having coils arranged in said spring engaging channel and secured therein by clamping portions thereof upon the coils, a rope disposed in said tacking strip channel, the distance between the edges of'the channel being substantially less than the diameter of the channel whereby the tacking strip is retained therein, and a covering arranged with its edges wrapped under said frame member and secured thereto by tacks driven into said tacking strip, the length of the tacks exceeding the diameter of the channel whereby their ends are deflected by the wall of the channel and clenched into the tacking strip.

2. In a spring cushion, the combination upon itself and then,

of a sheet metal frame member curved in cross section to provide a'tacking strip channel disposed withthe channel facing inwardly; the upper arm of said channel being folded backwardly uponitself and then curved upwardly and inwardly to provide an inwardly facing spring engaging channel disposed centrally above said tacking strip channel, springs having coils arranged in said spring engaging channel, a rope disposed in said tacking strip channel, the diameter of the rope being greater than the distance between the edges of the channel, whereby the tacking strip'is retained therein, and a covering arranged with its edges wrapped under said frame member and securedthereto by tacks driven into said tacking strip, the length of the tacks exceeding the diameter of the channel whereby their ends are deflected by the wall of the channel and clenched;

3. In a spring cushion, the combination of a sheet metal frame member curved in cross section to provide a tacking strip channel, one arm of said channel being folded backwardly upon itself and terminating in a spring engaging coils arranged in said spring engaging channel and secured thereby by clamping portions thereof upon the coils, a rope disposed in said tacking strip channel, the diameter of the rope being greater than the distance between the edges of the channel whereby the tacking strip is retained therein, and a covering secured to said frame member by tacks driven into said tacking strip, the length of the tacks exceeding the diameter of the channel whereby their ends are deflected by the wall of the channel and clenched into the rope.

4. In a spring cushion, the combination of a sheet metal frame member curved in cross section to provide a tacking strip channel, one arm of said channel being folded backwardly upon itself and terminating in a spring support channel, spring supports having their ends engaged in said spring support channel, a rope disposed in said tacking strip channel, the diameter of the rope being greater than the distance between the edges of the channel whereby the tacking strip is retained therein, and a covering secured to said frame member by tacks driven into said tacking strip, the length of the tacks exceeding the diameter of the channel whereby their ends are deflected by the wall of the channel and clenched into the rope.

5. In a spring cushion, the combination a frame member provided with a tacking strip channel, springs mounted on said frame member, a tacking strip formed of rope secured in said tacking strip channel, and a covering secured to said frame member channel, springs having by tacks driven into said tacking strip, the length of the tacks exceeding the diameter of the channel whereby their ends are deflected by the wall of the channel and 5 clenched in the tacking strip.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

FRANK P. DARCY. [L.s.] Witnesses:

LUELLA G. GREENFIEIA), GRACE B. THOMPSON. 

